540639

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 878592

約数和(自身を除く): 337953

約数列:

[1, 3, 9, 11, 33, 43, 99, 127, 129, 381, 387, 473, 1143, 1397, 1419, 4191, 4257, 5461, 12573, 16383, 49149, 60071, 180213, 540639]

約数ペア:

[(1, 540639), (3, 180213), (9, 60071), (11, 49149), (33, 16383), (43, 12573), (99, 5461), (127, 4257), (129, 4191), (381, 1419), (387, 1397), (473, 1143)]